Work

{sup 9}Be and {sup 11}B NMR study of superconductivity in boron doped UBe{sub 13}

Year: 1994

Type: conference-paper

Abstract: We present {sup 9}Be and {sup 11}B NMR spin-lattice relaxation rate (1/T{sub 1}) measurements in UBe{sub 13-x}B{sub x} for x = 0.03 and 0.07 over the temperature range 0.096 K to 2 K. The temperature dependence of 1/T{sub 1} shows a strong B concentration dependence, especially at low temperatures. We interpret this behavior as consistent with gapless superconductivity induced by the addition of B impurities. The ratio of the {sup 9}Be to {sup 11}B 1/T{sub 1} increases with decreasing temperature below {Tc} indicating additional contributions to the {sup 9}Be relaxation rate, possibly from nuclear spin diffusion to normal-state vortex cores or paramagnetic impurities.

Source: University of North Texas Digital Library (University of North Texas)

Authors: Ahrens, E. T., Heffner, R. H., Hammel, P. C., Reyes, A. P., Smith, J. L., Clark, W. G.

Institutions: Los Alamos National Laboratory, University of California, Los Angeles

Language: English

Topic: Rare-earth and actinide compounds

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: U.S. Department of Energy

Awards: G1702950523, G797745481

OpenAlex ID: W2339640554

FWCI:

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